Spraying apparatus



March 22, 1938; H', E BRANDT 2,111,961

SPRAYING APPARATUS Filed March 29, 1937' 2 sneet/s-sheet 1 March22,1938. HEBRANDT 2,111,961

SPRAYING APPARATUS Filed March 29, 1957 2 Sheets-Sheet 2 Patented Mar.22, 193% UNrrs stares SPRAYNG APPARATUS Henry il. Brandt, North St.Paul, Minn.

Application March 29,

l2 Claims.

This invention relates to a sprayer construction and particularly to asprayer ot the type which may be carried by the operator and in whichthe fluid is placed under pressure by air.

It is desirable in such a sprayer to have a receptacle with a ratherlarge opening .at its top so thatv the spraying uid may be convenientlyplaced therein. This opening` must be closed during the sprayingoperation and it is desirable to have a simple means and one which maybe easily and quickly operated to tightly close thesaid opening andreceptacle. A pump cylinder for pumping air is provided and it isdesirable to have the handle which operates the plunger' rod of the pumpor pump 'cylinder also used for eifecting said closure.

It is an object of this invention, therefore, to provide a simple andefficient type of receptacle adapted to receive the spraying iiuid.

It is aV further object of the invention to provide a receptacle havinga comparatively large opening for the reception of the spraying fluidtogether with simple and easily and quickly operated means for closingsaid opening.

It is still another object of the invention to provide a sprayer havingan air pump cylinder with a plunger rod equipped with a handle, saidhandle also being constructed and arranged to be used in effecting theclosure of the receptacle.

It is still further .an object of the invention to provide a sprayercomprising a receptacle having an opening at its upper end surrounded bya gasket-receiving surface, a closure plate carrying a gasket adapted toengage said plate and rotatable means for pressing said gasket againstsaid surface without rotating said gasket.

These and other objects and advantages of the invention will be fullyset forth in the following description made in connection with theaccompanying drawings in which like reference characters refer tosimilarparts throughout the several views and in whichz o Fig. 1 is aperspective view of the sprayer, a portion of the discharge tube and thedischarge nozzle being broken away;

Fig. 2 is a view in side elevation of the sprayer with the upper portionthereof shown in central vertical section;

Fig. 3 is la partial view in side elevation of the closure meanstogether with a portion of the pump cylinder and the pump plunger rodand handle;

Fig. 4 is a horizontal section taken on line fi-ll of Fig. 3 asindicated by thearrows;

1937, Serial No. 133,615

Fig. 5 is a horizontal section taken on line 5-5 of Fig. 3 as indicatedToy the arrows;

Fig. 6 is a partial vertical section similar to Fig. 2 but shown on anenlarged scale indicated by line of Fig. 7;

Fig. 7 is a top plan View of the cover clamping plate used; and

Fig. 8 is a top plan View of the container.

Referring to the drawings, a sprayer is shown comprising a receptacleVlil and while various forms oi receptacles might be used, in theembodiment of the invention illustrated the receptacle it is shown as anupright cylinder having beads lila adjacent its tcp and bottom andhaving a cup-shaped portion iilb at its top. The portion lill; is openat its upper' end and the side wall thereof forms an upstanding rim, thebeing shown as having an outwardly turned bead lilo at its upper edge. Ashort distance inwardly of the side wall of portion illb the same isformed with a plurality of partly circular helical flanges ltd, saidiianges being partly circular as shown in Fig. 8. The upper part ille ofcontainer EEB upon which portion itil) seats and to which it is secured,extends inwardly horizontally and is prof vided with a` central openinglilf of comparatively large diameter, which opening is surrounded by abead ity struck up from portion ille. A closure plate l l is providedcarrying at its central portion a pump cylinder i2 which extendsdownwardly below said plate into receptacle it and which has its openupper end projecting some distance above said plate, said upper endbeing provided with an outwardly extending bead ld. The plate H at itsouter portionis bent to forni an annular :3,:-

trough in which is seated a gasket member i3. The bead its forms agasket-receiving surface or a seat for gasket i3 which engages the saineto form a tight closure. A second plate lf2.- is provided, which plateis formed at its outer edge with i a plurality of partly circularhelical ilanges lila adapted to cooperate with flanges ld. It will beseen from Figs. 4 and 8 that said ilanges have adjacent ends, the highportion of one flange being adjacent the low portion of the other angeand f disposed some distance'above the same. With this arrangement theflanges lila may have their ends enter below the flanges illd and in therotation of plate lli the same will be drawn downwardly toward thereceptacle by anges ind. Plate ill engages the top of plate le! adjacentthe outer top portion of the latter and is adapted to press plate ildownwardly as plate irl is rotated. Plate lil has: an upwardly pressedcentral portion Mb forming a substantially cylindrical recess at itslower side adapted to receive the upper end of the pump cylinder I2. Thewall surrounding said recess has circumferentially spaced resilientportions Ific separated a distance slightly less than the diameter ofthe bead IZa. As shown in Fig. 7 these portions are straight portions atopposite sides of portion I 4b. The bead I2a and thus the upper end ofpump cylinder I 2 must be forced past portions Ille with considerablepressure to be received in the recess in portion Mb. The pump cylinderand thus plate II are then connected to plate I against longitudinalseparation or movement by any ordinary force but are rotatablerelatively to plate It. Said parts may be separated by a longitudinalpull thereon with the application of considerable force. Member it has acentral opening through which extends a plunger rod I extending intopump cylinder I2 and which will be provided at its lower end with theusual plunger for the air pump. Rod I5 has a handle I6 secured to itsupper end and while this handle might be variously formed, in theembodiment of the invention illustrated it is shown as having upwardlycurved sides rectilinear and parallel at their upper portions andconnected by horizontal portions Ilia. Portions Ita are also shown asconnected by a central portion I 6b having oppositely disposed concavesides. Plate I4 at either side of rod I5 has curved slots Idd, the samehaving at their centers outwardly extending enlargements Ille. 'Ihe topof portion Mb is also pressed upwardly at portions IM at the ends ofsaid slots and at their outer sides to form small recesses on theunderside of said portion. Handle I6 has projecting downwardly from itslower side at each side of rod I5, lugs IIc and these lugs haveoutwardly extending portions or projections ld with fiat top surfaces.In Fig. 1 the sprayer is shown as having small brackets I'I secured invertically spaced relation along one side in which are connected therings I8, in turn pivotally connected to clips I9 secured to the ends ofa supporting strap 20 which the operator may place around his shoulders.A portion of the discharge tube 2| for the sprayer is also shown in Fig.l.

In operation, when the sprayer is to receive the spraying fluid, thelugs ,i60 will be placed downwardly through the slots Idd throughportions Ille. Handle I5 will then be rotated in a counterclockwisedirection and the projections ld will move under the top of portion Mband said lugs will engage the ends of slots Id and rotate plate ill.Said plate will be rotated to bring the helical flanges Illa out ofengagement with the flanges on the top of container IIJ. Handle I6 willthen be lifted and at this time the projections iSd will seat in therecesses formed at the undersides of portions IM. Plate I4 and plate II,which, as stated, is connected thereto, will now be lifted and removedtogether with pump cylinder I2. The spraying fluid can now be pouredinto opening Ilf When the desired amount of fluid has been placed in thecontainer the plates Il and Irl together with pump cylinder I2 will beagain placed in position with gasket I3 engaging the bead IIlg. HandleI6 will now be rotated in a clockwise direction and the lugs IBC willengage the other ends of slots Id and plate I4 will be rotated. Theflanges Illa will move under flanges Id and due to the helical formationof these flanges plate I4 will be drawn downwardly toward the containerand this plate will press upon plate I I so that plate Il will be moveddownwardly and gasket I 3 will be pressed tight against the bead orsurface lilo. Owing to the provision `forrelative rotation between theupper end of the pump cylinder and plate It the plate I I need notrotate so that there will be no rotation of gasket I3. This is desirableas it is objectionable to rotate the gasket on its seat. The sprayer isnow tightly closed and the desired air pressure can be placed on theliquid by slightly rotating handle I6 so that the lugs IIic can bewithdrawn through slots Idd and enlargements Ille and the handle thenreciprocated to pump the air through cylinder i2 and into the receptacleI5. After the desired air pressure has been attained the handle I6 canagain be moved to insert lugs itc through the slots Md and said lugs maybe moved to the ends of said slots. The sprayer can then be carried bymeans of handle I6 if desired. The member ilb forms in effect a funneland prevents spilling of any liquid which might not at once enter theopening IElf, The portion Ib being permanently secured to the containeris always available and a funnel is always thus in place for use.

From the above description it is seen that applicant has provided a verysimple and efcient structure of sprayer and particularly of the closuremeans for the sprayer. The structure is very compact and comprises veryfew parts. The filling of the container can be easily and quickly doneand the sprayer quickly put in condition for use. lIhe device has beenamply demonstrated in actual practice and found to be very successfuland efficient.

It will, of course, be understood that various changes may be made inthe form, details, arrangement and proportions of the parts, withoutdeparting from the scope of applicants invention, which generallystated, consists in a device capable of carrying out the objects aboveset forth in the parts and combinations of parts disclosed and definedin the appended claims.

vl/'hat is claimed is:-

l. In a sprayer construction, areceptacle having a central opening atits upper end surrounded by a surface adapted to form a seat for agasket, a closure plate for said opening carrying a gasket engageablewith said surface and having a pump cylinder extending downwardlytherefrom, a rotatable member above said first mentioned plate havingclamping means thereon, means on said receptacle surrounding saidopening adapted to be engaged by said rotatable clamping means and meansincluding a handle for rotating said member to cause said clamping meansto draw it toward said receptacle and press said gasket against saidsurface, said member and rst mentioned plate being attached relativelyrotatable so that said gasket is not rotated with said member and aplunger in said pump cylinder reciprocable by said handle for pumpingair into said receptacle.

2. In a sprayer construction, a receptacle having a central opening atits upper end surrounded by a surface adapted to form a seat for agasket, a closure plate for said opening carrying a gasket engageablewith said surface and having a pump cylinder carried thereby, a secondplate above said first mentioned plate having a rotatable clamping meansthereon, means on said receptacle surrounding said opening adapted to beengaged by said clamping means, a handle for rotating said second plateto cause said clamping means to draw it toward said receptacle and presssaid rst mentioned plate toward said receptacle and press said gasketagainst said surface, said second plate being connected to said firstmentioned plate against longitudinal movement but being rotat- Ysecondplate above said first mentioned plate having a rotatable clamping meansthereon, means on said receptacle surrounding saidV opening adapted tobe engaged by said clamping means, a handle for rotating'said secondplate to cause said clamping means to draw it toward said receptacle,press said first mentioned plate toward'said receptacle and press saidgasket against said surface, said second plate having a central raisedportion forming a cylindrical recess, said pump cylinder having itsupper open end projecting above said rst mentioned plate and receivablein said recess, said end of said pump cylinder and first mentioned platebeing connected to permit `relative rotative movement thereof and aplunger in said cylinder reciprocable by said handle for pumping airinto said receptacle.

Ll. In a sprayer construction, a receptacle having a central opening atits upper end surrounded by a surface adapted to form a seat for agasket, a closure Vplate for said opening carrying a gasket engageablewith said surface and having a pump cylinder in the center thereof andextending downwardly therefrom, the open top of said cylinder extendingabove said plate, a second plate having a central recess therein intowhich said end of said pump cylinder extends, means connecting said pumpcylinder and second plate preventing relative longitudinal movement ofsaid plates but permitting relative rotative movement thereof, aplurality of helical flanges on said receptacle surrounding saidopening, each less than 180 degrees in extent, similar helicalflanges onsaid second plate, a plunger rod for said cylinder extending throughsaid second plate, a handle at the top of said rod having meansdetachably engaging said second plate for rotating the same to engagesaid flanges and draw said first mentioned plate toward said containerand press said gasket against said surface and a plunger in saidcylinder reciprocable by Y said handle for pumping air into saidreceptacle.

5. A sprayer construction comprising a receptacle having a rigid topwith an upstanding outer rim forming in effect a funnel, a plurality ofpartly circular helical flanges within said rim, said container having acentral opening and a gasket-receiving surface surrounding said openingand disposed between the same and said flanges, a cover plate for saidopening having a gasket therein engageable with said surface, a secondplate having a plurality of partly circular helical flanges adapted toengage said rst mentioned flanges and draw said first mentioned platetoward said receptacle in the relative rotation of said respectivehelical flanges and press said gasket against said surface, said secondplate being rotatable relative to said first mentioned plate and meansfor rotating said second plate.

6. In a sprayer construction, a receptacle having a central opening atits upper end Surrounded by a surface adapted to form a seat for agasket, a closure plate for said opening carrying a gasket engageablewith said surface and having a member extending downwardly therefromadapted to pass through said opening and be disposed in said receptacle,a second plate above said first mentioned plate having clamping meansthereon,

means on said receptacle surrounding said opening adapted to be engagedby said clamping means, said clamping means being relatively rotatablewhile in engagement to move said plates downwardly and press said gasketagainst said surface, said second plate having a central upwardlypressed portion forming a recess therein and having oppositely disposedslots in the top thereof, a handle having lugs receivable in said slotswith projections adapted to extend outwardly beyond said siots so as tolift said second plate, said lugs being also adapted to engage the endsof said slots to rotate said second plate, said second plate and memberbeing liftable out of said receptacle by said handle. Y f

7. A sprayer construction having in combination, a receptacle having acircular opening at its upper end, a surface surrounding said openingadapted to form a seat for a gasket, a closure plate carrying a gasketadapted to engagesaid surface, a pump cylinder carried centrally of saidY.

plate, the upper end of said cylinder projecting above said plate, asecond plate having a central recess therein, said pump cylinder havinga bead about its upper end, said upper end being movable into saidrecess, the walls of said recess having circumferentially spacedresilient portions past which said upper end of said cylinder must beforced to enter said recess so that said pump cylinder is connected tosaid second plate against ordinary longitudinal stress but may rotaterelatively thereto and means for moving said rst mentioned plate towardsaid receptacle by said rstmentioned plate to press said gasket againstsaid surface.

8. In a sprayer construction, a receptacle having a central opening atits upper end surrounded by a Surface adapted to form a seat for agasket, a closure plate for said opening carrying a gasket engageablewith said surface and having a pump cylinder extending downwardly andcentrally therefrom arranged to be disposed in 'said receptacle, amember above said first mentioned plate having clamping means thereon,means on said receptacle surrounding said opening adapted to be engagedby said clamping means and means including a handle for rotating saidmember to relatively rotate said clamping means while in engagement todraw said member toward said re-ceptacle and press said gasket againstsaid surface, said pump cylinder and plate being connected to saidmember for rotation relatively thereto and being separable therefrom bya forceful longitudinal movement and a plunger in said pump cylinderreciprocable by said handle to pump air into said receptacle..

9. A sprayer construction having in combination, a receptacle having acentral opening at its upper end surrounded by a surface adapted to forma seal, a closure plate for said opening carrying a portion engageablewith said surface and having a pump cylinder carried thereby, a secondplate above said first mentioned plate having a rotatable clamping meansthereon, means on said receptacle surrounding said opening constitutinga cooperating clamping means adapted to be engaged by said firstmentioned clamping means, a handle for rotating said second plate torelatively rotate said respective clamping means while engaged to drawsaid second plate toward said receptacle and press said first mentionedplate toward said surface and a plunger in said cylinder reciprocable bysaid handle for pumping air into said receptacle.

10. A pump cylinder and closure Structure for a sprayer comprising aclosure plate, a pump cylinder secured to said plate and extendingdownwardly therefrom, a second plate above said closure plate having acentral recess therein, said pump cylinder having a bead about its upperend disposed in said recess and rotatable therein, the wall of saidrecess extending under said bead so that said pump cylinder is connectedto said second plate against movement longitudinally of said pumpcylinder but is rotatable relatively to said second plate.

11. In a sprayer construction a receptacle having a central opening atits upper end surrounded by a surface adapted to form a seat for agasket, a gasket on said seat, said gasket being disposed above theportion of the top of said receptacle adjacent said opening, a closuremember for said opening, a pump cylinder centrally secured to saidmember and carried thereby, said cylinder having an outwardly extendingflange thereon adapted to engage said gasket and be pressed thereagainstwhen said member is in operative position, said member having helicalanges or threads at its periphery, threads or flanges carried by saidreceptacle outwardly of said rst mentioned flange cooperating with saidiirst mentioned threads or flanges, to move said member to operativeposition when rotated, a plunger rod extending into said cylinder, saidmember having a central aperture through which said rod extends, ahandle at the upper end of said rod having means for detachably engagingsaid member to rotate the same, said receptacle having an upwardlyextending ange forming a funnel for directing uid into said firstmentioned opening.

l2. In a sprayer construction a receptacle having a central opening atits upper end surrounded by a surface adapted to form a seat for agasket, a gasket on said seat, a closure member for said opening, a pumpcylinder centrally secured to said member and carried thereby, saidcylinder having an outwardly extending flange thereon adapted to engagesaid gasket and be pressed thereagainst when said member is in operativeposition, said pump cylinder being connected at its upper end to saidmember and said flange on said cylinder being disposed some distancebelow the top of said cylinder, said member having helical flanges orthreads at its periphery, threads or flanges carried by said receptacleoutwardly of said first mentioned ilange cooperating with said rstmentioned threads or flanges, to move said member toy operative positionwhen rotated, a plunger rod extending into said cylinder, said memberhaving a central aperture through which said rod extends, a handle atthe upper end of said rod having means for detachably engaging saidmember to rotate the same, said receptacle having an upwardly extendingflange forming a funnel for directing uid into said first mentionedopening.

HENRY E. BRANDT.

